/*
 * Copyright (C) 2017 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.copybara.jcommander;

import com.beust.jcommander.IParameterValidator;
import com.beust.jcommander.ParameterException;

/**
 * Check if a parameter is greater than zero.
 */
public class GreaterThanZeroValidator implements IParameterValidator {

  public void validate(String name, String value) throws ParameterException {
    if (Integer.parseInt(value) < 1) {
      throw new ParameterException(
          String.format("Parameter %s should be greater than zero (found %s)", name, value));
    }
  }
}
